This drum mag from HFC has been specially developed for the G17/G18 models glocks. This fit is both the WE/Umarex/RWA/Novritsch Glock models. The drum magazine comes in a nice box and comes with a small jar of bbs (use at your own risk). The magazine must be filled with green gas and wound manually via the winding system at the front of the magazine. The arrow direction indicates which pitch the winding system should be wound. when you fill the magazine with bb's about 130 pieces in this when you wind the magazine about 70 bb's can be loaded.

The magazine is made of a very high quality polymer and metal. making for a lightweight and compact drum mag.

note: do not over-wind the magazine as this may damage the spring that loads the bb's. It is also normal that when there are no more bbs in the drum, the bbs in the follower can no longer be advanced. the warehouse must then be topped up.

The magazine may not function on all Glock models/generations. This is therefore not considered a defect in the product and is not covered by the warranty